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Best Nec Electrical Code Tools Apps

203+ iOS apps curated and reviewed

4.5 avg rating
18 free apps
Updated June 2026

Whether you're new to nec electrical code tools or looking for an upgrade, our curated collection of 203+ iOS apps has something for everyone. Each app is reviewed and rated by real users, helping you make an informed decision.

Top Picks for Nec Electrical Code Tools

Ugly's Electrical References#1

Ugly's Electrical References by Informed Publishing

Editor's Choice
📊 Productivity
4.4😐(1.5K ratings)
$12.99
#11in Productivity
Ugly's Electrical References screenshot 1
Ugly's Electrical References screenshot 2
Ugly's Electrical References screenshot 3
Ugly's Electrical References screenshot 4

This app provides electricians and electrical professionals with up-to-date digital information based on the National Electrical Code. It includes formulas, wiring diagrams, conduit bending guides, and calculators for various electrical calculations. The app is designed for on-the-job reference and works offline.

What We Love

  • 🚀 Quick reference
  • 👍 Helpful for apprentices and journeymen
  • 👍 Convenient to have on phone
  • 👍 Useful calculators

Room to Improve

  • 🐛 Videos/audio not working
  • 🐛 Bookmarking issues
  • 🐛 Glitchy navigation
Ask BONBON - NEC Code AI#3

Ask BONBON - NEC Code AI by Bonbon Electric 2021

Electrical & NEC AI Assistant
Worth Considering
📊 Productivity
4.7😊(36 ratings)
FreeIn-App Purchases
Ask BONBON - NEC Code AI screenshot 1
Ask BONBON - NEC Code AI screenshot 2
Ask BONBON - NEC Code AI screenshot 3
Ask BONBON - NEC Code AI screenshot 4
Ask BONBON - NEC Code AI screenshot 5

This AI-powered assistant provides instant answers to National Electrical Code (NEC) questions for electricians. Get precise code information, explanations, and troubleshooting help directly on the job site to ensure compliance and build confidence.

What We Love

  • 🚀 Very Helpful App
  • 👍 User Friendly
  • 👍 Accurate and Precise Answers
  • 👍 Saves Time and Headache

More Nec Electrical Code Tools apps to explore

4
Electrical Code-A-Day
Electrical Code-A-Day
Electrical Code-A-Day
Quiz for Electricians
Free

Test your electrical knowledge daily with a new question based on the US electrical code. Perfect for apprentices, journeymen, and masters seeking to learn or refresh their understanding of electrical concepts and regulations.

Daily electrical code questionsQuestions written by a real electricianCovers a wide range of electrical topics
📊 Productivity
(8.6K)
free
5
Harbor Freight Tools
Harbor Freight Tools
Harbor Freight Tools
Harbor Freight Coupons
Free

Discover the latest coupons, instant savings, and exclusive deals for members. Browse tools, check local stock, and create wish lists. Scan barcodes in-store for more product information.

Latest coupons and instant savingsInside Track Club member dealsBrowse tools and watch videos
🛍️ Shopping
(216K)
free
6
Wire Color Code
Wire Color Code
Wire Color Code
Electrical circuit colors
Free

This app helps electricians and DIYers identify electrical wire colors globally. It offers country-specific codes, a large circuit database, and quick search functionality. Customize colors for your projects and enjoy a user-friendly interface for efficient electrical panel wiring.

Global country-specific wire color codesExtensive circuit database (up to 1000 circuits)Quick search for phase colors
📊 Productivity
(654)
free with in-app purchases
7
NEC Electrician Exam Prep 2026
NEC Electrician Exam Prep 2026
NEC Electrician Exam Prep 2026
Journeyman Electrician Prep
Free

Prepare for your Journeyman Electrician certification exams with a comprehensive mobile study tool. Practice over 1,200 questions across various electrical topics, including definitions, calculations, and equipment. Boost your confidence and readiness for the official test.

Over 1,200 practice questionsTopic-specific focusVersatile testing modes
📚 Education
(60)
free with in-app purchases
8
NEC Box & Conduit Calc
NEC Box & Conduit Calc
NEC Box & Conduit Calc
NEC Box & Conduit Fill
Free

Calculate electrical box and conduit fill accurately according to the NEC. This app provides instant, reliable calculations for electricians, contractors, and students, saving time on job sites. It offers support for various box and conduit types, conductor sizes, and includes wire volume data.

Box fill calculationsConduit fill calculationsWire volume data
🔧 Utilities
(17)
free with in-app purchases
9
Southwire® Conduit Fill Calc
Southwire® Conduit Fill Calc
Southwire® Conduit Fill Calc
by Southwire Company
Free

This tool assists electricians, engineers, and contractors in determining the correct conduit size based on NEC guidelines. It calculates conduit fill percentages and jam probability, saving time compared to manual calculations.

Conduit size calculationNEC fill percentagesJam probability
🔧 Utilities
(746)
free
10
NEC Electrical Exam Prep 2026
NEC Electrical Exam Prep 2026
NEC Electrical Exam Prep 2026
Journeyman & Master Exam Prep
Free
🔍 Reference
(2)
11
Kopperfield
Kopperfield
Kopperfield
Load calcs, NEC help, and more
Free

Streamline electrical design and permitting with powerful tools for load calculations, panel schedules, and single-line diagrams. Quickly reference the National Electrical Code with an AI-powered chatbot and generate instant PDF reports for inspectors and clients.

Load calculator with NEC standardsSingle line diagram toolPanel schedule creation
🔧 Utilities
(9)
ad-supported
12
RYOBI
RYOBI
RYOBI
All-in-one tool management app
Free

Manage, monitor, and maximize your tools with this app. Register new purchases, track connected tools, and explore the product catalog. Access manuals, warranty information, and find nearby retailers.

Product registration with OCR and barcode scanningMonitor and manage connected toolsView tool status and metrics
🔧 Utilities
(13K)
free with in-app purchases
13
NEC Exam Prep
NEC Exam Prep
NEC Exam Prep
NFPA 70 Electrical Code Tests
Free

Master the National Electrical Code (NEC) with engaging quizzes covering all essential topics. Ideal for students and professionals seeking to boost their knowledge and confidence for the NEC exam. Learn and grow with this comprehensive study companion.

Comprehensive NEC topic coverageEngaging and fun quizzesBoosts knowledge and confidence
📚 Education
(2)
free with in-app purchases
14
Conduit Fill: NEC Calculator
Conduit Fill: NEC Calculator
Conduit Fill: NEC Calculator
Voltage Drop, Wire & Box Fill
Free
🔧 Utilities
(3)
15
NEC Electrical Exam Prep 2025
NEC Electrical Exam Prep 2025
NEC Electrical Exam Prep 2025
Ace the NEC Journeyman Today
Free

Prepare for the NEC Electrical Exam 2025 with interactive quizzes, mock tests, and detailed analysis. Master the National Electrical Code with expert explanations and track your progress. Study offline anytime, anywhere.

Random quizzesPractice by topicFull-length mock tests
📚 Education
(1)
free with in-app purchases
16
Kony QR Code
Kony QR Code
Kony QR Code
QR Code Maker and Scanner
Free

This utility app functions as a comprehensive QR code assistant, enabling users to scan existing codes and generate new ones. It supports various QR code types and includes a history feature to store previously scanned codes for easy access.

QR code scanningQR code creationMultiple QR code types
🔧 Utilities
(2)
free
17
Electric Color Code
Electric Color Code
Electric Color Code
by DAE J MYUNG
$0.99

This app helps electricians and construction workers quickly identify the color codes for electrical conductors in US single or three-phase systems. It's a straightforward tool designed for efficiency on the job.

US conductor color code lookupSingle phase system supportThree phase system support
📊 Productivity
(19)
paid
18
Electrical Exam Prep
Electrical Exam Prep
Electrical Exam Prep
Electricians license exam -NEC
Free

Prepare for your electrician's license exam with a comprehensive question bank and adaptive learning tools. Master the NEC code with smart hints and track your progress to build confidence for exam day.

1350+ NEC-related questionsAdaptive drill engineSmart code hints for NEC navigation
📚 Education
(1)
free with in-app purchases
19
ElectriCalc Pro
ElectriCalc Pro
ElectriCalc Pro
Electrician NEC Calculator
Free
$29.99 | 100% OFF

This app provides electricians and electrical professionals with a powerful tool for performing complex calculations based on the latest National Electrical Code (NEC). It offers solutions for wire sizing, voltage drop, conduit sizing, and motor calculations, saving time and ensuring code compliance.

NEC compliant calculationsWire and conduit sizingVoltage drop calculations
🔧 Utilities
(256)
free with in-app purchases
20
Electrical Formulator
Electrical Formulator
Electrical Formulator
by Historycentral.com Inc
Free

This app provides a comprehensive suite of electrical calculation tools for design and engineering challenges. It offers hundreds of conversion and calculation options, with features to save, print, and email results. Easily access frequently used and recently accessed formulas, with all calculations automatically stored.

Over 100 electrical formulasSave and organize resultsShare results via email or print
📊 Productivity
(1)
freemium